National Instruments NI 9411 - Connecting Single-Ended Devices to the NI 9411

© National Instruments Corp. 11 NI 9411 Operating Instructions and Specifications
Connecting Single-Ended Devices to the NI 9411
You can connect single-ended (TTL) devices to the NI 9411.
Connect the signal to the DIa pin, but do not connect a signal to the
DIb pin in the pair. You must leave the second signal in the set of
signals unconnected. For example, if you connect a single-ended
signal to the pin for DI0a, leave DI0b unconnected. Figure 4 shows
a possible configuration.
Figure 4. Connecting a Single-Ended Device to the NI 9411
COM
V
sup
COM
NI 9411
Receiver
Circuitry
out
Single-Ended
Device
DIa
DIb
+5 V
Reg
–+
+5 V
out
External
Power Supply
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com